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3 years ago

Rihanna colored ones Brianna color 1/6 of her picture and somebody colored 1/4 of his picture who played more

Mathematics

1 answer:

Dmitry [639]3 years ago

3 0

Answer: The one that colored 1/4.

Step-by-step explanation: 1/4 is greater than 1/6.

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Multiply and simplify. 1/2 X (13/6+7/8

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(12x)(136+78)=(12x)(136+78)=(12x)(136)+(12x)(78)=1312x+716x=7348x

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3 years ago

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How to slove 4b + 21 = b + 3(b+7)

vivado [14]

Answer:

Value of b is all the numbers.

All the numbers will satisfy the value of b.

Step-by-step explanation:

4b + 21 = b + 3 ( b + 7 )

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2 years ago

(1,9); slope 4 answer

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4 years ago

Rina is 6x + 3:8 feet tall and Ryan is 5x + 1/8 feet tall. How much taller is Rina than Ryan?

Dimas [21]

Answer: Rina is $x+\dfrac{1}{4}$ feet taller than Ryan.

Step-by-step explanation:

Given, the height of Rina = $6x+\dfrac{3}{8}$ feet

The height of Ryan = $5x+\dfrac{1}{8}$ feet

To find : How much taller is Rina than Ryan?

Clue : Rina is taller than Ryan.

For that , we need to check the difference of the height between Ryan and Rina

i.e. (height of Rina) - (height of Ryan)

$=6x+\dfrac{3}{8}-(5x+\dfrac{1}{8})\\\\=6x+\dfrac{3}{8}-5x-\dfrac{1}{8}\\\\=x+\dfrac{3-1}{8}\\\\=x+\dfrac{2}{8}\\\\=x+\dfrac{1}{4}$

Hence, Rina is $x+\dfrac{1}{4}$ feet taller than Ryan.

8 0

4 years ago

insurance company checks police records on 559 accidents selected at random and notes that teenagers were at the wheel in 91 of

ss7ja [257]

Answer: $(13.22\%,\ 19.34\%)$

Step-by-step explanation:

Given : Sample space : n= 559

Sample proportion : $\hat{p}=\dfrac{91}{559}=0.162790697674\approx0.1628$

$=16.28\%$

Significance level : $\alpha= 1-0.95=0.05$

Critical value : $z_{\alpha/2}=1.96$

Confidence level for population proportion:-

$\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\=0.1628\pm (1.96)\sqrt{\dfrac{0.1628(1-0.1628)}{559}}\\\\=0.1628\pm0.030604971367\\\\\approx 0.1628\pm0.0306=(0.1322,\ 0.1934)=(13.22\%,\ 19.34\%)$

Hence, 95% confidence interval for the percentage of all auto accidents that involve teenage drivers.= $(13.22\%,\ 19.34\%)$

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4 years ago